vacuum/boost discrepancies
05-05-04, 11:26 PM
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vacuum/boost discrepancies
I am getting very different readings for vacuum/boost
from my Autometer (vacuum line to UIM) boost gauge and my PMC purple box hand controller.
At idle, boost gauge shows -18 lbs. PMC shows -23 (!)
Max boost is 13+ on boost gauge, 10 on PMC.
So which do I trust? If I plug in another gauge and validate the boost gauge is accurate, what sensor do I check to diagnose the ECU/PMC?
from my Autometer (vacuum line to UIM) boost gauge and my PMC purple box hand controller.
At idle, boost gauge shows -18 lbs. PMC shows -23 (!)
Max boost is 13+ on boost gauge, 10 on PMC.
So which do I trust? If I plug in another gauge and validate the boost gauge is accurate, what sensor do I check to diagnose the ECU/PMC?
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memmi
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